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  1. M

    Programmer / Timer replacement on an old boiler . Pump over run needed

    Hi Old&Cold.. thank you for your help .. pls see my [] responses below is it not possible to disconnect the mechanical timer wires only and adapt to a new external time clock ? [ yes i am trying to replace this with an external or any timer that works, and we are discussing about how to get...
  2. M

    Programmer / Timer replacement on an old boiler . Pump over run needed

    thanks stem .. I wonder if the following images can be of any help to establish whether or not the Red wire from the boiler can be discarded in the new config. If so. then there are only 2 cables to consider: to Pump ( L-N-E ) and to Boiler ( L-N-E with Red sealed off ) The timer 'Solenoid'...
  3. M

    Programmer / Timer replacement on an old boiler . Pump over run needed

    I am looking at the red wire in the cable from the boiler. it is connected to the "solenoid" terminal of the timer, and leads to the timers pump overrun microswitch unit ( see 2 red circles ) and joined to the 2nd red circle is on a strange ( i think), semi conducting plate that heats up the...
  4. M

    Programmer / Timer replacement on an old boiler . Pump over run needed

    thank you heatservice, & stem.. :heatservice is the pipe stat you are referring to the Honeywell L641B I mentioned? or pipe stats are pretty standard. :stem - I am looking at your link to Schneider Electric OFF Delay Single Timer Relay, Screw, 0.1 s → 100 h, SPDT, 2 Contacts, SPDT and also...
  5. M

    Programmer / Timer replacement on an old boiler . Pump over run needed

    Thanks for all your input.. --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Stem - is it a kind of time delay relay you might be referring to ? ie connect between the programmer...
  6. M

    Programmer / Timer replacement on an old boiler . Pump over run needed

    I wonder if anyone is able to help. I have a ServoWarm Elite 50 Boiler . it is over 30 years old , and is extremely reliable and has never really broken down. This is a simple hot water boiler system . with a pump and thermostat all in the housing. there is no room thermostat. so all it does is...
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