hot water but no rads Help and information on all topics relating to your central heating, air conditioning and ventilation issues.

[stephenj]

hot water heats up fine but no heating. have replaced hallway thermostat and the pump. i am able to get the rads warm by manually moving the threeway valve lever. i have also replaced threeway valve motor but to no avail. with heating selected the hall thermostat will click when adjusted but the pump and valve do nothing.
please help as its getting very cold.
thanks :(

[plumbbob]

You don't mention a time clock. Either this is faulty or you have a problem with the wiring. Really you need an electrical tester to help identify the problem rather than just stabbing in the dark by replacing parts.

Give more information about type of system. What type of programmer? Type of hall stat? Cylinder stat? Make of TPV?

[Steve the gas]

Hi Stephen,

Time for a drain down + replace 3 port valve body IMO.

Hth

[stephenj]

[quote="plumbbob"]You don't mention a time clock. Either this is faulty or you have a problem with the wiring. Really you need an electrical tester to help identify the problem rather than just stabbing in the dark by replacing parts.

Give more information about type of system. What type of programmer? Type of hall stat? Cylinder stat? Make of TPV?[/quote]

programer=acl lifestyle lp241
hallstat=drayton rts1
mpv=acl lifestyle 679h340-3olo
cylinder stat=acl hts2

[stephenj]

[quote="Steve the gas"]Hi Stephen,

Time for a drain down + replace 3 port valve body IMO.

thanks for your advise,all working fine now.

thanks again
steve