Medium
8/2/2 on Worcester Bosch GB162

Your boiler is not communicating with its wall-mounted thermostat control, so it does not know what temperature you want your home to be.

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

RC35-HK2 remote control. No remote control assigned, although room temperature control has been set.

From this model's manual
Verified against the Worcester Bosch Gb162 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

Check if the batteries in your wall-mounted thermostat are flat and replace them if necessaryEnsure the thermostat is securely mounted on its wall plate or base station to ensure a stable connectionRe-pair the thermostat to the boiler by following the commissioning or wireless pairing instructions in your user manual

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 8/2/2: 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

8/2/1View →8/2/3View →

Related guides you might find useful

Boiler won't turn on — 9-step checklist

Work through these before the call-out.

Read →

Yellow or orange flame — CO safety

Safety-critical — turn off, read this.

Read →

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →