SPECIAL OFFERS
TotalHome Wired Digital Thermostat TTHWD
A hardwired digital room thermostat from TotalHome (Resideo/Honeywell), a direct replacement for the Honeywell DT90E.
£32.84
£27.37 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The TotalHome TTHWD is a hardwired digital room thermostat made by Resideo (Honeywell) under the TotalHome brand. It gives automatic temperature control of a wet central heating system and is sold as a direct replacement for the Honeywell DT90E.
Signs this part needs replacing
- Room temperature no longer matches the set-point shown on the display
- Display is blank or unreadable
- Boiler runs continuously or not at all regardless of the thermostat setting
- Buttons fail to respond
Before you order
- Confirm the existing thermostat is a Honeywell DT90E before fitting this as a replacement
- Check wiring at the wall plate matches before disconnecting the old unit
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SPECIAL OFFERS Honeywell Total Home | — | — | — |
Documents & drawings
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No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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