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by S1mon
Tue Jul 10, 2018 8:36 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Honeywell 3 Port V4073A Motorised Valve and Issue With no Heating
Replies: 2
Views: 11233

Re: Honeywell 3 Port V4073A Motorised Valve and Issue With no Heating / Repaired

Hi. Thanks to all that looked. I decided to have a look around internet for how the head actually works, voltages etc. I found the necessary info. The reason my synchronous motor was holding its position inside the valve is due to a diode and couple of resistors supplying some ac voltage, just enoug...
by S1mon
Mon Jul 09, 2018 2:45 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Honeywell 3 Port V4073A Motorised Valve and Issue With no Heating
Replies: 2
Views: 11233

Honeywell 3 Port V4073A Motorised Valve and Issue With no Heating

Hi Everyone, I have an issue with my central heating system where I can turn on the water and the boiler hearts the water, if I turn on the heating the Honeywell 3 port V4073A motorised valve does not move the valve to heating even if the thermostat is set to max. This sounds like a simple job of re...
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