HomeCommon Problems

Fault index

Symptoms, and what they usually mean

A symptom is not a diagnosis. This index explains the likely causes behind each complaint so you know what a technician will be looking for.

Not Cooling

Usually restricted airflow, a failed fan motor, low refrigerant charge or a compressor that is drawing current but not pumping.

Refrigeration · Equestria →

Not Freezing

Usually an iced-up evaporator, a defrost circuit failure or a thermostat reading incorrectly.

Refrigeration · Equestria →

Leaking Water

Usually a blocked defrost drain, a cracked drip tray or a condensate pump that has stopped clearing.

Refrigeration · Equestria →

Refrigerant Leak

Usually corroded evaporator tubing, a failed braze joint or vibration damage at the compressor discharge line.

Refrigeration · Equestria →

Making Loud Noise

Usually worn fan bearings, loose mounting rubbers or a compressor nearing the end of its service life.

Refrigeration · Equestria →

Freezing Over / Icing Up

Usually a failed defrost heater or timer, a door seal drawing humid air in, or low charge causing the coil to ice.

Refrigeration · Equestria →

Not Switching On

Usually a tripped overload, a failed start relay, a control board fault or supply voltage outside tolerance.

Refrigeration · Equestria →

Tripping The Electricity

Usually a shorted compressor winding, moisture in a terminal box or a damaged heater element.

Refrigeration · Equestria →

Temperature Problems

Usually a drifting sensor, an incorrectly set controller or a system slowly losing capacity.

Refrigeration · Equestria →

Bad Smell

Usually biological growth on a wet coil, a blocked drain holding stagnant water or filters overdue for service.

Refrigeration · Equestria →

Not Lighting

Usually a dirty injector, a failed piezo or spark module, a tripped thermocouple or a regulator not delivering pressure.

Gas Heaters · Equestria →

Ignition Problems

Usually a worn spark electrode, moisture in the ignition path or a faulty ignition switch.

Gas Heaters · Equestria →

Yellow Or Uneven Flame

Usually incorrect gas-to-air mixture, a partially blocked burner port or contamination in the injector.

Gas Heaters · Equestria →

Regulator Problems

Usually a regulator that has failed closed, a perished hose or an incorrectly rated regulator for the appliance.

Gas Heaters · Equestria →

Smell Of Gas

Usually a loose fitting, a perished hose or a valve that is not seating — this is treated as an emergency.

Gas Heaters · Equestria →

Keeps Switching Off

Usually a flame-failure device shutting the appliance down, overheating or a safety cut-out doing its job.

Gas Heaters · Equestria →

Technicians available

Describe the symptom, we will find the cause

Tell us what the unit is doing and where you are. We confirm a time, arrive with test equipment and spares, and quote before we start.