Hi, I recently moved in a new home where we have a Worcester 28i Junior with an mechanical timer (judging by it's code it's GRASSLIN ELECTRO MECHANICAL 24HR TIMER) which is driving me crazy with ticking. So I thought to replace it with rt500bc.
Wiring diagram on the back of the old timer and on the rt500bc is the same, so I assumed that it should be an easy swap. Once wired up, receiver is not pairing (no light at all).
I contacted salus support asking them if there is something wrong in my wiring (maybe they need 4th link as well?) or the receiver unit is faulty, and got a response that rt500bc is not compatible with Worcester 28i, and I should by myself a ST620WBC.
I am a bit perplexed by this (given the fact that the old unit is powered by a simple mechanical relay with a timer), so would like to hear your opinion as well.
This is back of my current (old timer):
Back of rt500bc
I connected wires in following way:
red to 1, black to 3, and blu to 4
Any thoughts?
Wiring diagram on the back of the old timer and on the rt500bc is the same, so I assumed that it should be an easy swap. Once wired up, receiver is not pairing (no light at all).
I contacted salus support asking them if there is something wrong in my wiring (maybe they need 4th link as well?) or the receiver unit is faulty, and got a response that rt500bc is not compatible with Worcester 28i, and I should by myself a ST620WBC.
I am a bit perplexed by this (given the fact that the old unit is powered by a simple mechanical relay with a timer), so would like to hear your opinion as well.
This is back of my current (old timer):
Back of rt500bc
I connected wires in following way:
red to 1, black to 3, and blu to 4
Any thoughts?