Fix It Yourself with Confidence — Cooling Systems
Guided Repairs, Maya AI live in your pocket. AC units, RTUs and chillers — capacitor and contactor tests, condenser cleaning, refrigerant-level symptoms and thermostat diagnostics.
30-day model-specific repair guides, schematics, parts links, and Maya chat support.
Brands covered
Popular models we diagnose
Click any model — the wizard opens pre-filled with the most common symptom and DIY cost range.
Two-stage AC — start capacitor & contactor.
- Run capacitor swollen / 0 µF
- Contactor pitted — won't engage
- Compressor short-cycling
Infinity series — communicating thermostat.
- E1 / E2 communication loss
- Inducer pressure switch fault
- Defrost board lockout
Mini-split — indoor LED diagnostic table.
- Indoor LED blinks 5× — refrigerant low
- Outdoor fan PCB error
- Drain pump failure / water leak
Common symptoms we resolve
Tap a symptom — the wizard opens with that problem already described.
Fix It Yourself with Confidence
30-day full access for one appliance — schematics, parts, guided steps and Maya AI live in your pocket.
Model-specific, photo-illustrated walkthroughs for your cooling system — no guesswork.
Direct links to the manufacturer service manual and wiring diagrams for your exact model.
Pre-matched OEM parts with current pricing — no wrong-part returns.
Stuck on a step? Maya answers in seconds with photo + voice support.
Decode every fault code from your control board, with the fix beside it.
Built-in lockout/tagout, capacitor discharge and refrigerant reminders before each step.
Safety first — in your home
Run capacitors store lethal voltage even with power off — discharge with an insulated resistor before testing. Refrigerant recovery / charging requires EPA 608 certification.
Deposit recommendation
Capacitors ($15–$55), contactors ($20–$60) and condenser fan motors ($80–$220) are no-deposit DIY parts. Get a quote before authorizing any refrigerant work.