Siemens
Siemens Wireless Room Thermostat S55770-T380
Siemens RDJ100RF/SET wireless room thermostat set, part number S55770-T380, with a 433MHz transmitter and receiver.
At a glance
- Also known as 4190284
£93.40
£77.83 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 S55770-T380 is a genuine Siemens wireless room thermostat, part of the RDJ100RF/SET radio-frequency 24-hour time switch system. The set pairs an RDH100RF electronic room thermostat transmitter with an RCR100/433 receiver/switching unit that operates at 433MHz.
Signs this part needs replacing
- Thermostat display is blank or unresponsive
- Heating fails to respond to temperature changes at the thermostat
- Wireless connection between transmitter and receiver drops out
- Programme settings are lost or won't save
Before you order
- Match the part number printed on your existing thermostat/receiver
- Fit fresh AA batteries before assuming the unit has failed
- Isolate power to the receiver before wiring work; installation of the receiver should be carried out by a competent person
Compliance
| Alternative numbers | 4190284 |
|---|
No fitment data held for this part.
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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