- What This Cheat Sheet Covers (and What It Doesn't)
- Credential Snapshot: The Facts at a Glance
- The Eight Modules in One Table
- Modules 1 and 2: Consumer Relations and Core Technical Knowledge
- Modules 3 and 4: Cooling and Convenience Equipment
- Modules 5 through 8: Cleaning, Cooking Gas, Cooking Electric, Microwave
- Eligibility, Proof Requirements, and Renewal
- Scoring and Question Format Quick Reference
- Which Module to Study in Which Order
- Quick-Fire FAQ
- CMT here means PSA's Master Technician (MCAP) rating inside the Certified Appliance Professional (CAP) program.
- Master status requires passing all eight modules, with at least 75% in every module per PSA's CAP overview.
- You need at least two years of appliance-service experience, plus proof of CFC certification for the Cooling Equipment module.
- The lower Technician rating needs only Consumer Relations, Core Technical Knowledge, and one technical module.
What This Cheat Sheet Covers (and What It Doesn't)
This page is a compressed review sheet for appliance-service technicians pursuing the Certified Master Technician rating from the Professional Service Association (PSA). On this site, "CMT" refers specifically to that appliance-service credential, the Master Technician (MCAP) rating within PSA's Certified Appliance Professional program. It is not the automotive ASE Master Technician credential, and it is not the financial Chartered Market Technician designation. If you arrived looking for either of those, this is the wrong sheet.
The goal is to give you one place to confirm the structural facts (modules, thresholds, prerequisites, renewal) and a checklist of the technical territory each module expects you to command. For deeper walkthroughs, the CMT study guide covers preparation strategy, and the complete guide to all 8 content areas expands on each module in detail.
Credential Snapshot: The Facts at a Glance
Here is everything you can state with confidence about the credential's structure:
| Item | What to Know |
|---|---|
| Certifying body | Professional Service Association (PSA) |
| Program | Certified Appliance Professional (CAP) |
| Top rating | Master Technician (MCAP), the "CMT" on this site |
| Question volume | More than 300 questions across the modules (per PSA's undated overview) |
| Minimum score | At least 75% in every module |
| Experience requirement | At least two years of appliance-service experience |
| Special proof | CFC certification required for the Cooling Equipment module and for Master status |
| Master status | All eight modules passed |
| Renewal cycle | Four years; continuing education is the renewal method |
Two details trip people up. First, the 75% threshold applies to each module, not to an overall average, so a strong showing in cooking electric cannot rescue a weak result in laundry. Second, the CFC proof is tied to both the Cooling Equipment module and Master status itself, which means you cannot reach Master without it. The CMT requirements breakdown walks through eligibility in more depth, and the passing score article explains how the per-module threshold plays out.
The Eight Modules in One Table
PSA's examination is organized into eight modules. The names below reproduce PSA's official module names, and the "what it tests" column is a plain-language summary of the territory a working technician should expect.
| # | Module | Core Territory |
|---|---|---|
| 1 | Consumer Relations Skills | Customer communication, professionalism, handling complaints and expectations |
| 2 | Core Technical Knowledge (Basic Skills) | Electrical fundamentals, test equipment, safe diagnostic practice |
| 3 | Cooling Equipment (Air Conditioning and Refrigeration) | Refrigeration cycle, sealed systems, airflow, controls |
| 4 | Convenience Equipment (Water Heaters, Disposers, Compactors) | Heating elements, gas and electric water heaters, mechanical and motor-driven units |
| 5 | Cleaning Equipment (Laundry Products and Dishwashers) | Washers, dryers, dishwashers: water flow, drive systems, timers and controls |
| 6 | Cooking Equipment Gas | Gas ranges and ovens: burners, ignition, safety valves |
| 7 | Cooking Equipment Electric | Electric ranges and ovens: elements, thermostats, control circuits |
| 8 | Cooking Microwave | Microwave components, high-voltage safety, diagnostic sequence |
The Technician rating is the narrower path: Consumer Relations, Core Technical Knowledge, and at least one technical module. Master requires all eight. That asymmetry is why many candidates earn the lower rating first and then add modules over time.
Modules 1 and 2: Consumer Relations and Core Technical Knowledge
These two modules are required for every rating level, which makes them the foundation of the whole credential. They are also the modules experienced technicians most often underestimate.
Consumer Relations Skills
This module treats the service call as a customer interaction, not just a repair. Expect scenario-style questions about how a professional technician behaves in someone's home.
- Arrival, introductions, and setting expectations before work begins
- Explaining a diagnosis and repair options in non-technical language
- Handling frustrated customers, disputes, and estimate disagreements
- Respecting the home, cleaning up, and closing out the call properly
- Honesty about whether a repair makes economic sense
Core Technical Knowledge (Basic Skills)
The shared technical base that every appliance module builds on. Weakness here bleeds into every later module.
- Electrical fundamentals: voltage, current, resistance, and how they relate in appliance circuits
- Correct use of a multimeter for continuity, voltage, and resistance checks
- Reading schematics, wiring diagrams, and technical sheets
- Common components: switches, relays, thermostats, motors, capacitors
- Safe working practice, including lockout of power and handling of stored energy
Because these two modules gate every rating, a sensible plan treats them as non-negotiable first targets. The difficulty guide discusses where candidates typically feel the most pressure across the full set.
Modules 3 and 4: Cooling and Convenience Equipment
Cooling Equipment (Air Conditioning and Refrigeration)
This is the module with a hard prerequisite: proof of CFC certification is required to sit it and to achieve Master status. If you do not already hold that certification, resolve it before anything else, since it can block your entire Master path regardless of how well you score elsewhere.
Cooling Topics to Master
Think in terms of the sealed system and everything that controls it.
- The refrigeration cycle: compressor, condenser, metering device, evaporator, and the role of each
- Symptoms of low charge, restrictions, and compressor problems
- Air-side service: fans, coils, defrost systems, and airflow problems
- Electrical control components specific to cooling units, such as start devices and thermostats
- Responsible refrigerant handling in line with your CFC credential
Convenience Equipment (Water Heaters, Disposers, Compactors)
This module groups three very different product families. Candidates sometimes treat it as the "easy" module and get caught by the breadth.
- Water heaters: gas versus electric operation, heating elements and thermostats, safety devices, sediment and venting concerns
- Disposers: motor and grinding assembly operation, jams, leaks, and electrical protection
- Compactors: drive and ram mechanisms, safety interlocks, and control circuits
Modules 5 through 8: Cleaning, Cooking Gas, Cooking Electric, Microwave
Cleaning Equipment (Laundry Products and Dishwashers)
Washers, dryers, and dishwashers share a common structure: water or air movement, a drive system, and a control system that sequences the cycle.
Cleaning Equipment Checklist
- Water inlet valves, pumps, drain paths, and level or pressure sensing
- Drive systems: motors, belts, clutches, transmissions, and agitation or tumbling mechanisms
- Dryer heat sources, thermal protection, and airflow or venting problems
- Dishwasher spray, heating, and detergent-dispensing functions
- Timers, electronic controls, and door or lid switches
Cooking Equipment Gas
Gas cooking carries safety stakes beyond a failed repair, so expect emphasis on correct, cautious diagnosis.
- Burner operation, air-to-gas mixture, and flame characteristics
- Ignition systems and safety shutoff devices
- Gas valves, regulators, and pressure considerations
- Safe leak-checking practice and what to do when a hazard is found
- Oven thermostat and control behavior on gas ranges
Cooking Equipment Electric
Electric ranges and ovens reward strong Core Technical Knowledge, because most failures resolve through methodical electrical testing.
- Surface and oven heating elements: testing, failure modes, and replacement logic
- Infinite switches, thermostats, and temperature-sensing components
- Control circuits, selector switches, and clock or electronic control interactions
- Supply wiring, voltage verification, and safe connection practice
Cooking Microwave
- Magnetron, high-voltage circuit components, and their relationships
- Door interlock and safety switch systems
- Stirrer, turntable, and cavity components
- Basic troubleshooting by symptom: no heat, no start, arcing, noise
Eligibility, Proof Requirements, and Renewal
Before worrying about content, confirm you can actually qualify. Based on PSA's CAP overview:
- Experience: at least two years of appliance-service experience.
- CFC proof: documentation of CFC certification, required for the Cooling Equipment module and for Master status.
- Module coverage: all eight modules passed for Master; a narrower module set for the Technician rating.
- Per-module minimum: at least 75% in each module.
For renewal, the credential runs on a four-year cycle, and the government credential directory identifies continuing education as the renewal method. Plan your training log from the day you certify, since a four-year window is long enough to forget what you completed. If you are weighing the money and time involved, the cost breakdown and the ROI analysis cover how to think about the investment, and the salary guide addresses earnings context without relying on invented figures.
Exact current fees, registration steps, and testing windows should be verified directly with PSA, since its older overview is undated and its current page routes candidates through the CAP program and certification coursework. The exam dates article explains how to approach scheduling given that uncertainty.
Scoring and Question Format Quick Reference
| Question | Answer |
|---|---|
| How many questions? | More than 300 across the modules, per PSA's undated overview |
| What score passes? | At least 75% in every module |
| Can one strong module offset a weak one? | No. Each module must independently reach the threshold |
| Must all modules be taken at once? | Master requires all eight passed; confirm sequencing rules with PSA |
| Is there a lower rating? | Yes: Technician, using Consumer Relations, Core Technical Knowledge, and at least one technical module |
Because the 300-plus question figure comes from a legacy overview, treat it as a sense of scale rather than a guaranteed 2026 count. What matters for planning is the per-module threshold: you are effectively preparing for eight separate pass/fail hurdles. For data-oriented readers, the pass rate article explains why published pass-rate numbers for this credential are hard to pin down.
Key Takeaway
Do not average your way to a pass. Audit your weakest module honestly, because that single module sets the ceiling on whether you reach Master status.
Which Module to Study in Which Order
Rather than generic scheduling, sequence by dependency. Core Technical Knowledge underpins every technical module, so it goes first. The CFC-gated cooling module needs lead time for documentation, so start that paperwork early even if you study the content later.
Foundations
- Core Technical Knowledge: electrical fundamentals, meter use, schematics
- Consumer Relations scenarios, which are quick to review and gate every rating
- Confirm CFC documentation status for the Cooling module
Heat-Driven Modules
- Cooking Equipment Electric, which reinforces Core Technical Knowledge directly
- Cooking Equipment Gas, with extra time on safety devices and ignition
- Convenience Equipment, comparing water heaters, disposers, and compactors
Systems-Heavy Modules
- Cooling Equipment: refrigeration cycle and sealed-system symptoms
- Cleaning Equipment: washers, dryers, and dishwashers by drive and control type
- Cooking Microwave, with a dedicated pass on high-voltage safety
Weak-Module Repair
- Retest each module and rank them by score
- Spend the remaining time on whichever module sits closest to the 75% line
Adjust the order to your day job. A technician who works refrigeration daily can shorten the cooling block and lengthen cleaning or microwave. The study guide covers resources and pacing in more depth, and you can pressure-test your recall with the CMT practice tests once you have worked through each module.
Quick-Fire FAQ
It means Certified Master Technician in the appliance-service field, specifically PSA's Master Technician (MCAP) rating within the Certified Appliance Professional (CAP) program. It is not the automotive ASE credential or the financial Chartered Market Technician designation. For background, see what CMT certification is.
Yes. Master status requires passing all eight modules, each at 75% or higher. The lower Technician rating needs only Consumer Relations, Core Technical Knowledge, and at least one technical module.
No. According to PSA's CAP overview, proof of CFC certification is required for the Cooling Equipment module and for Master status, so secure that documentation early in your plan.
It follows a four-year renewal cycle, and continuing education is identified as the renewal method in the government credential directory. Keep records of your training so renewal is straightforward.
Treat it as approximate. It comes from PSA's undated CAP overview, which should be considered a legacy source. Confirm current exam structure with PSA, and use the CMT certification overview alongside the practice test site to build realistic expectations.