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Mend Horstmann

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We have 41 questions about mending 'horstmann'

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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]
Mend D.I.Y, Plumbing

How can i fix my hot water problem?

My economy7 timer box doesnt is not working properly. The make is horstmann. I normally have the hot water on ... [Read more]
Mend Heating, Home Heating Systems

horstmann economy 7 quartz?

have new horstmann economy 7 quartz and the boost dial does not move and go off and the clock does not move is... [Read more]
Mend Heating, Home Heating Systems

instructions on how to fit a thermostat?

how to fit a horstmann wireless thermostat to a ferroli optimax he plus 31 c boiler
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