HELP WITH PRECISION 8145 TIMER

[iced-tea]

I have a low temp box thats not going into defrost..
The time clocks turns but when it gets to defrost the compressor continualy runs& fans..
I checked voltages ,and when it clicked to defrost,it showed no voltage TO HEATERS AT THE #3 TERMINAL..does not pump down,and the compressor runs...
Is this clock defective...


[Edited by iced-tea on 07-21-2005 at 09:00 PM]

[gerryboy00]

did you tried with the wire on the X connection disconect?

first thing to check is the termination termostat

[conaire-one]

Low Pressure Control set too low.

[Warren]

check the timer release solenoid on the back of the time clock, it may be burned which will not let clock go into defrost mode or make sure contacts make and break like they should

[iced-tea]

I disconnected the x terminal,yea low pressure control is fine-i checked that earlier-unit will pump down of off thermostat..one thing i notice that dont look right is they got one leg of the compressor wired to the #2 leg instead of the #4 terminal..that puts the compressor on the line side of the clock..

[jimp]

Originally posted by Warren
check the timer release solenoid on the back of the time clock, it may be burned which will not let clock go into defrost mode or make sure contacts make and break like they should

Bingo

[iced-tea]

It does make break contacts..
I will check solenoid..
Thanks guys!!!!

[jaybee]

Can anyone of u guys tell me wuere to go to get a wirring diagram of this time clock. Thanks in advaance for any help.

[Dad]

Originally posted by jaybee
Can anyone of u guys tell me wuere to go to get a wirring diagram of this time clock. Thanks in advaance for any help.

Jaybee

A must have...

Print this out and keep it in your truck. Everything you need in a hurry and when you have spare time to read too...

http://www.heatcraftrpd.com/Maintenance/manuals/H-IM-64K.pdf

[icemeister]

Did this thread get combined somehow with ones from iced-tea and jaybee?

I'm just checking to see if I'm losing my faculties. ;)

[Dad]

Not lost... just borrowed for awhile

somehow your always are given back ! :D

[icemeister]

If any thread needs to be reorganized, it's the "Mystery Problem". It's so badly fragmented you don't know where to start. ;)