Hi, I'm hoping someone will be able to give me some advice.
I have an Ideal Mini HE C24, which was controlled by a Drayton Digistat wireless Programmer/Thermostat that was only working intermittently (the receiver would send the signal to the boiler to switch on, but nothing would happen)
I called a plumber to come and look at it and he said the programmer was at fault and so "by-passed it for now", so that the heating would come on when switched on, and run continuously until switched off. While on, the first green light and the second red light is on, which the Installation and Servicing guide says is Frost Protect Operation.
I've since found it impossible to get him to come back and properly fix it.
I've investigated the "by-pass" and found he connected the RED control wire to which the programmer connects, to the 240V live supply.
Disconnecting it and leaving out a bridge wire across the external controls connector doesn't stop the boiler firing up when switched on.
The Installation and Servicing guide only refers to an external frost protect thermostat, but the smaller user guide says it has a built in one... so I'm a bit confused there...
I have the horrible feeling putting live 240V onto the red control wire has blown the PCB, but I would appreciate any replies to either confirm this, or point me in a better direction, such as the "built in frost protect thermostat", before I buy a new PCB.
All help will be greatly appreciated, I've had this problem since last November! Thanks.
I have an Ideal Mini HE C24, which was controlled by a Drayton Digistat wireless Programmer/Thermostat that was only working intermittently (the receiver would send the signal to the boiler to switch on, but nothing would happen)
I called a plumber to come and look at it and he said the programmer was at fault and so "by-passed it for now", so that the heating would come on when switched on, and run continuously until switched off. While on, the first green light and the second red light is on, which the Installation and Servicing guide says is Frost Protect Operation.
I've since found it impossible to get him to come back and properly fix it.
I've investigated the "by-pass" and found he connected the RED control wire to which the programmer connects, to the 240V live supply.
Disconnecting it and leaving out a bridge wire across the external controls connector doesn't stop the boiler firing up when switched on.
The Installation and Servicing guide only refers to an external frost protect thermostat, but the smaller user guide says it has a built in one... so I'm a bit confused there...
I have the horrible feeling putting live 240V onto the red control wire has blown the PCB, but I would appreciate any replies to either confirm this, or point me in a better direction, such as the "built in frost protect thermostat", before I buy a new PCB.
All help will be greatly appreciated, I've had this problem since last November! Thanks.