i have a 93 honda civic ex coupe and recently my heat stop working in my coupe i checked both fuses and the relay which both of them are good..The control panel dont work at all so could it be something with the relay but also nothing is coming out of the vents at all!...can someone please help with my problem idk what esle to do

 

check to see if your heater control valve is still operating correctly. It should be somewhere near your firewall in the engine bay and connected to the heater hose. If it works, I would look into your heater core which is inside your dash. Do you have any coolant leaks?

 

Are you saying that the FAN doesn't work, or your HEAT doesn't work?

Is there air coming out of the vents (FAN works/doesn't work)?

Is there air coming out but it's cold when it should be hot (HEAT works/doesn't work)?

 

I will assume you mean the blower is not working, if so...

I would start by checking the blower motor itself, check for power to the blower motor when the ign. switch is on and check for ground to the blower motor when blower speed switch is on.

A common problem, other then the blower motor itself, is a defective blower resistor, to confirm this, if blower motor has power but no ground, use a jumper lead to supply the blower motor with a ground, if the blower works, the the problem is most likely the blower resistor. 94

 

https://honda-tech.com/forums/tech-misc-15/blower-motors-works-speeds-3-4-but-not-1-2-fix-how-2082345/