Thermor Appliance Repair in Matson, Robinswood and White City

What does error code W.11 mean on a Thermor heat pump water heater?

Error W.11 means the thermodynamic water heater has not received the off-peak hours impulse from your electricity meter. Check that your off-peak hours contactor is functioning correctly and verify the wiring between your meter and the water heater.

What does error code 7 mean on a Thermor electric water heater?

Error 7 indicates the ACI anti-corrosion protection system has malfunctioned. Restart by cutting power for 1 minute and check visible connections if accessible. If the error persists, contact a qualified engineer as professional replacement of the ACI components may be needed.

What does error code W.30.5 mean on a Thermor heat pump water heater?

Error W.30.5 indicates a mismatch between water heater settings and the ducting installed, or aeraulic pressure losses are too high. Check the ducting parameters in the installer menu and verify thermal exchange. If the fault clears when inlet ducting is removed, the ducting may need reconfiguration.

What does error code W.3 mean on a Thermor heat pump water heater?

Error W.3 indicates the water temperature probe is defective or reading outside acceptable parameters, typically showing an abnormal 85°C reading. Check all sensor connections and ensure proper positioning. Verify the ohmic value of the probe. If everything appears normal, the temperature sensor needs to be replaced by a qualified engineer.

What does error code W.50.3 mean on a Thermor Aeromax Split heat pump water heater?

Error W.50.3 indicates a communication error between the outdoor unit and the interface card. Check that the outdoor unit receives proper electrical power. A qualified engineer should inspect interconnection wire 3 and test the coil circuit, relay, and high-pressure switch on the external unit.

Can multiple people in my household use the Cozytouch app?

Yes. Simply download the app on additional smartphones and sign in with the same username and password to access the same installation.

What is the difference between Steatite and copper heating elements?

Steatite heating elements are enclosed in an enamelled steel sleeve, preventing direct contact with water. This makes them more efficient at heating water, produces less limescale, and requires no tank draining for replacement. Copper elements contact water directly and can struggle in aggressive or hard water conditions.

Is the Cozytouch app free to use?

Yes, the Cozytouch application is completely free to download and use. There are no subscription fees.

How do I clean the evaporator on my Thermor heat pump water heater?

The evaporator should be cleaned annually. Use compressed air to blow debris from the fins, a vacuum cleaner with a soft brush attachment, or a dedicated evaporator cleaning spray. Take care as the aluminium fins are sharp. Always disconnect electrical power before performing any maintenance.

What size circuit breaker do I need for electric radiators?

A 16A circuit breaker protects installations up to 3500W using 1.5mm² cables. A 20A circuit breaker protects up to 4500W using 2.5mm² cables. For practical purposes, limit each circuit to a cumulative maximum of 4500W (typically 2-4 radiators) to minimise disruption if maintenance is required.