Check gas supply, check flue system, check polarity
Pro A32 Fault codes & diagnostics
16 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
The fault code is already on your display
Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →
Severity at a glance
Each cell = one fault code. Hover to identify.Which version do you have?
The GC number on your boiler's data badge identifies the exact appliance and production years, as recorded in the UK Product Characteristics Database.
| GC number | Appliance (register name) | Produced |
|---|---|---|
| 47-094-97 | A32 | 2008–present |
Appliance names and production years are taken from the UK Product Characteristics Database (the SAP/SEDBUK register). Where a GC number is also printed in this model's own manufacturer manual, both sources were checked to agree.
All 16 documented codes
Tap any card for details
Ignition failure, flame not sensed, condense sensor activated
Limit thermostat fault/fumes thermostat fault
External device fault (UHT/CPA)
Return temperature too high
Temperature differential inverted (return sensor temperature higher than thermistors flowsensor temperature)
Fan tacho signal fault
Insufficient system water pressure
Insufficient system water pressure
Internal fault
Jumper tag fault
DHW thermistor fault
Primary (flow) thermistor fault
Return thermistor fault
Over temperature due to low HO pressure
Flow temperature too high, temperature differential too high
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