Medium
135 on Baxi PLATINUM COMPACT 25 COMBI

Your boiler has experienced a general internal electronic glitch or communication error that is causing the display to flash.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Flashing error

From this model's manual
Verified against the Baxi/Baxi Platinum Compact Combi Baxi Platinum Compact Combi Installation 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.

DIY fix possible

Turn off the boiler at the main power switch or wall isolator.Wait for approximately 60 seconds to allow the internal system to fully reset.Turn the power back on and check if the flashing error clears.

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 135: 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

E133View →E119View →E168View →

All 17 fault codes on the PLATINUM COMPACT 25 COMBI

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

0915202840109110118125128130133134160321384

Related guides you might find useful

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →

Boiler service cost

What a UK service costs and what a proper one includes.

Read →