Thermor Appliance Repair in Pinhoe

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 Err11 mean on a Thermor towel rail?

Error Err11 indicates an anomaly with the temperature sensor of the heating element responsible for heating the frame. This is an internal sensor separate from the room temperature sensor. Power cycle the unit. If the error persists, contact a qualified engineer.

What does error code Err10 mean on a Thermor electric radiator?

Error Err10 indicates a communication fault between the motherboard and thermostat control. Cut power for 2 minutes, then restart. If the error persists, contact your installer or a qualified engineer as this indicates an internal electronic fault.

What does error code W.22 mean on a Thermor heat pump water heater?

Error W.22 (including W.22.1 and W.22.2) indicates the evaporator probe is defective or reading outside acceptable parameters. This requires professional diagnosis. Contact a qualified heating engineer to inspect the sensor connections and replace if necessary.

What does error code W.25 mean on a Thermor heat pump water heater?

Error W.25 indicates a power supply or compressor operation fault. Check that the room is adequately ventilated and nothing is obstructing airflow. Switch off the water heater for 15 minutes, then restart. If the error persists, contact a qualified heating engineer.

What is Thermor's ACI Hybrid anti-corrosion protection?

ACI Hybrid (Anti-Corrosion Integrated) is Thermor's patented system combining an indestructible titanium anode with magnesium particles. An electronic control board produces a low-intensity electrical current that uses naturally present minerals to protect the tank's enamelled walls from corrosion.

How often should I clean the air filter on my heat pump water heater?

Clean the air filter annually under normal conditions, or every six months if the unit is installed in a dusty environment. A clogged filter reduces heat pump efficiency and can lead to insufficient hot water production. The filter is accessible without tools and can be cleaned with a vacuum or soft brush.

Why is my Thermor heat pump water heater not producing enough hot water?

Common causes include incorrect operating mode settings, dirty air filters reducing efficiency, cold ambient temperatures outside the operating range, or high hot water demand exceeding the unit's recovery capacity. Check your settings and ensure the filter is clean.

How does the Boost function work on Thermor heat pump water heaters?

The Boost function provides hot water on demand by defining authorisation ranges for heat pump and electric element startup. Options include 24-hour operation or programmed time slots. This allows rapid water heating when you need extra hot water, even in economy mode.

What is Frost Protection mode and when should I use it?

Frost Protection (also called HG or Hors Gel) maintains the room temperature at approximately 7°C to prevent freezing. Use this mode when you are away from your home for more than 48 hours during cold weather.