Lesson 1Picking and Getting Parts: Spotting Original vs Matching Parts, Reading Codes and SpecsBuild skills to find right replacement parts using fridge model labels, original maker lists, and detail sheets, compare original and local options, check if they fit wires and mechanics, and dodge usual buying and swapping errors common in Ghanaian markets.
Finding and reading fridge model labelsReading original part codes and changesUsing breakdown drawings and part mapsComparing original and local partsChecking wire and mechanical fitLesson 2Compressor and Starter Testing: Checking Start Relay/Capacitor, Current Pull Tests, Stuck Rotor SpottingLearn to test fridge compressors and starters with meters and clamp tools, spot bad relays and capacitors, know when rotor is stuck, and decide if compressor needs full replace for wire or mechanical issues.
Spotting compressor wire ends and coil setupTesting PTC and mechanical startersChecking start and run capacitorsMeasuring compressor current and start ampsFinding stuck rotor and inside shortsLesson 3Customer Talk Scripts: Simple Cause Explanation, Suggested Fixes vs New One, Cost/Benefit and Care Tips to Stop RepeatBuild good habits to talk clearly with customers by explaining faults in easy words, showing fix or replace choices, guessing costs, and giving care tips to cut future breaks and call-backs in busy homes.
Explaining checks in everyday talkTalking fix vs replace optionsShowing written cost guesses and choicesSetting real time lines and resultsGiving tips to prevent problemsLesson 4Wire and Sensor Checks: Multimeter Tests for Flow/Resistance of Defrost Heater, Thermistor Checks, Fan Current PullPractice safe wire checks with multimeter and clamp to test flow, resistance, and current on defrost heaters, thermistors, fan motors, and wires, telling normal from broken, shorted, or off readings.
Multimeter safety and lead setupFlow and resistance on heatersThermistor resistance vs heat chartsFan motor voltage and current checksTesting door switches and wire linksLesson 5Reading Signs: Warm Food Area, Cold Freezer with Back Ice, Non-Stop Compressor RunLearn to read common fridge signs like warm food side, icy back walls, noisy or endless running, and on-off cooling, then link each to likely air flow, defrost, control, or sealed cooling problems.
Warm food, normal freezer checkBack ice and air block hintsNon-stop or almost run timeQuick stops and many startsNoises, shakes, and bangsOn-off cooling and false tripsLesson 6Usual Problems: Compressor, Evaporator Frost/Defrost, Fan, Temp Sensors, Thermostats, Cooling Gas LeaksLink typical fridge signs to likely bad parts, like compressor faults, evaporator ice issues, fan breaks, sensor errors, and gas leaks, and learn to rank tests that prove or rule out each guessed problem.
No cool or warm in both partsWarm food, cold or icy freezerQuick stops and long run issuesNoisy work and shake complaintsOn-off cooling and false tripsHints of sealed system leaksLesson 7Heat Rules in Home Fridge Systems and Air Flow WaysUnderstand heat movement in home fridges, including pressure-heat links, evaporator and condenser jobs, and box air flow patterns, so you can tie poor cooling, icing, and quick stops to specific heat faults.
Basic cooling cycle and main partsPressure-heat link in systemsEvaporator load and frost buildCondenser heat loss and room effectsAir paths in food and freezer areasDoor opens and load effectsLesson 8Fix Steps: Changing Defrost Heater, Thermistor, Evaporator Fan, Door Seal; Steps to Recover/Refill Cooling Gas (Limits and Expert Call)Study step-by-step fix methods for common breaks, like changing defrost heaters, thermistors, evaporator fans, and door seals, and know when gas recovery or refill needs licensed experts.
Safe take-apart and panel offChanging defrost heaters and wiresThermistor reach, test, and changeEvaporator and condenser fan changeDoor seal off and onLimits for sealed system fixesLesson 9Safety Steps: Wire Cut-Off, Cooling Gas Handle Rules, Safety Gear, Pressure Release and Recovery BasicsUse key safety ways for fridge service, including wire cut-off, lock habits, gear pick, safe handle of sharp metal and moving bits, and basic cooling gas safety and rule duties.
Lock-off, tag, and unplug waysCheck no voltage before workGear for wire and sharp risksSafe handle of fans and moversBasics of gas exposure dangersRecord keep and rule tasksLesson 10Defrost System Check Plan: Timer, Bi-Metal/Thermostat, Heater, Control Board ChecksFollow step plan to check defrost faults by testing timers or boards, heaters, bi-metal thermostats, and sensors, telling wire breaks from control logic issues causing evaporator ice.
Spotting defrost fail signsFinding defrost parts by designTesting heaters for flowChecking bi-metal and defrost thermostatsForce defrost from control boardReading timer and board faultsLesson 11Eye Check List: Seals, Door Fit, Ice Build, Drain and Heater SpotsUse planned eye list to quick spot common fridge issues, like seal leaks, door off-fit, ice build, blocked drains, damaged wires, and dirty condensers, cutting call-backs and guiding deep checks.
Check door seals and close facesDoor fit and hinge wear checkSpot ice build and air blocksLook at drain pan, tube, outletsCheck wires, links, insulationLesson 12Cooling Gas System Checks: Still Pressure Reads, Leak Find Ways, When to Call Trained Gas TechLearn basic sealed system checks in rule limits, including still and run pressure reads, temp split looks, simple leak find ways, and know when to stop and call trained gas tech.
Spot sealed system partsSafe use of service ports and gaugesStill and run pressure readTemp split and line frost waysNo-cut leak find tricksWhen to get trained techsLesson 13After-Fix Tests and Proof: Temp Steady Testing, Run-Time Watch, Seal and Air Flow CheckProve good fixes by watching box temps, run-time, and defrost work, check door seals and air flow, and record reads to close job sure and cut call-back or repeat fail risks.
Steady time and temp recordCheck thermostat and sensor answerWatch compressor and fan runProve door seal and light workConfirm defrost cycle workFinal record and customer okay
