The heat relay needs to be activated by a vaccum switch. On my van the fix was to replace the vaccum line to the relay which allowed the relay to allow heat to travel to the blower.
There is no pre heat relay on my Peugeot! You better check with Peugeot.
Too much current cause excessive heat and cuases melting of the relay contacts.
indoor fan relay An electric relay that starts and stops an indoor fan on cooling, electric - heating, and heat pump systems
For air ride compressor Its a 5 or 6 wire electronic relay with a heat sink mounted on the compressor bracket.
Stay with-in the amperage capability, the voltage capability, and use a heat sink to dissipate the heat build up.
replace heater relay and or heater blower motor
Yes the relay will still click you could have blown a fuse that is for the pump, the relay on some models of engine is to only heat the fuel quickly for faster starting
You can find the relay on the drivers side under the dash near the fuse box. The easiest way to get to it is to remove the heat/ac duct. It just has a couple screws. The relay will just pull out.
True
The thermal relay may be bad.
Yep. Had the same problem on my 86. Changed the fan,sensor and relay.If you jumper the outer terminals on the relay connection you can tell if the fan works. If it does fine but the signal to 'throw' the relay from the ecm isn't working.Check with a test light for this signal.If ok replace relay.