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We have 39 questions about mending 'horstmann' in category Heating, Home Heating Systems

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Mend Heating, Home Heating Systems

Standy by battery on Horstmann H37 XL Progammer?

I have a Horstmann ChannelPlus H37 Series 2 Three Channel Programmer. Instructions state it has a non-recharg... [Read more]
Mend Heating, Home Heating Systems

Horstmann Economy7 Quartz Boost not working?

I have a Horstmann Quartz Economy7 timer which controls a dual element immersion heater. When the main time... [Read more]
Mend Heating, Home Heating Systems

Horstmann channel plus. The water is on all the time?

Even though the program shows three distinct periods throughout the day, the light stays on permanently and th... [Read more]
Mend Heating, Home Heating Systems

horstmann channel plus xl h37 displaying "?" Beside time?

Hi my horstmann channel plus xl h37 boiler control is displaying a "?" Beside the time when I put it on, does ... [Read more]
Mend Heating, Home Heating Systems

Why does my Trianco Eurostar oil boiller not run the hot water system?

I have a 15 year old Trianco Eurostar oil burner with a built-in Horstmann timer and additional hot water tank... [Read more]
Mend Heating, Home Heating Systems

Fitted new external timeswitch to potterton promax 33he and now heating won?

Fitted new external timeswitch to potterton promax 33he and now heating won't fire up. I have wired in a horst... [Read more]
Mend Heating, Home Heating Systems

wiring horstmann centaurstat 7?

swapping honeywell stat to horstman, two wires i presume live and swithed,the centaurstat 7 has 1234 could you... [Read more]
Mend Heating, Home Heating Systems

horstmann ChannelPlus H37XL?

My oil heating is coming on without me setting it. Nothing is coming up on the display unit. The only way I ca... [Read more]
Mend Heating, Home Heating Systems

have horstmann electronic 7 maxistore for hot water not working?

have had element and thermostat tested and are fine, no hot water just luke warm when off peak timer is on, bu... [Read more]
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