High
E06 097 on Potterton Promax 15 & 24

Your boiler has detected an issue with the internal component that transfers heat to your water, and it has automatically shut down for safety.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Heat Exchanger Assy

From this model's manual
Verified against the Potterton/Potterton Kingfisher Mf 40 100 System installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer
Search the official register →
Boiler cover options

Avoid the next call-out bill

A cover plan would handle faults like E06 097: no call-out fees, no surprise bills.

Approved partner
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Get a quote →

Affiliate links. We may earn a commission at no extra cost to you.

Related fault codes

E06View →

All 15 fault codes on the Promax 15 & 24

Seeing a different code? Every code this model can display, in one place.

DRY-FIRE LOCKOUTE06E06 058E06 059E06 060E06 065E06 066E06 074E06 075E06 085E06 091E06 093IGNITION LOCKOUTNO FAN RUN

Related guides you might find useful

No hot water but heating works

Almost always a stuck diverter valve on combis.

Read →

Banging / kettling / whistling noise

Each noise points to a different fault.

Read →

Radiators cold at the bottom

Sludge build-up — needs flushing, not bleeding.

Read →