I had to take out my carver 3600 stc gas fire out now it won't light

What is the question, without that bit of information we cannot answer your question. The model given shows up as a heater.

And you know the fuel filter is good? Could be injector problem: just as a check, spray some starting fluid into the intake and see if engine runs a few seconds. If it does, it is a fuel problem. Check injector fuse, as a start. Check fuel pressure. Check injector circuit. If engine won't start with starting fluid, check if you are getting spark. Problem may be in the ignition system.

It's a burner control problem. It maybe a defect on some protective devices (pressure switch, fire detector, etc.), a blown fuse, or a board defect (busted DC supply transformer, relays, or electronic devices).

The odometer/trip display in this model is a LCD display and it is burned out, it is a common fault on all GM models in this model year range. The problem can be repaired but it requires the Instrument cluster be removed form the Van and be sent out to a GM approved repair center. These repair shops are on the Internet just google GM instrument cluster repair. The cost is about $160.00 US.
The gas gauge is a separate problem, it is caused by a defective gas level sending unit inside the gas tank. TO replace the level sensor for the gauge you must remove the gas tank from the van. To do this repair you need a good hydraulic floor jack, jack stands to support the car and a good set of common hand tools and a helper if you do the job on the ground. Use great caution when working on a gas tank as the risk if fire and explosion is quite high if proper care is not taken to a avoid creating sparks. Always dicinnect the battery negative cable before starting work on any part of the car. The parts cost for this is about $200 and 4-5 hours of hard labor.

Could be a number of things honestly. Could be a blown head gasket or it's starting to go up. Could also be as simple as a new fuel filter and a professional fuel system cleanse. I would take it to a repair shop, one that you trust, and have it looked at. If the head gasket is repairable, it won't be that much unless the whole thing is blown, but the car would have no power at all then.

Hi Gordon,
You should normally use the built-in Igniter, normally a button or twist action on the gas regulator dial on the Carver unit, to light the Pilot Flame. This is normally indicated by a "lightning" sign. If this has stiopped working there is often a hole below the pilot's location to enable you use a lighter or match to light the pilot.
Check that you have an adequate supply of gas?
DON'T LEAVE THE GAS ON if the Pilot does not light.
Because of the safety issues associated with gas appliances you should take the vehicle/caravan to an authorised repair workshop for a permanent fix.

Wait 30 minutes; press reset button. Repeat if necessary. 4. Pilot light out. 4. Relight pilot. 5. No gas. 5. Make sure gas valve to furnace is fully open. Not enough ... home.howstuffworks.com/how-to-repair-gas-furnaces1.htm

Just checked this site. I am sure you will find it useful - Good luck

If the engine won't fire up, but your starter turns over, you may want to check your timing unless you have a check engine light on. If the CEL light is on, have the codes scanned.

If the engine won't turn over with the starter or it clicks, have your battery tested at autozone or advanced auto parts. Replace the battery if it is bad. Else, have your starter tested.

If the engine still won't turn over and the battery and starter are tested fine, you may have a blown fuse, bad ignition switch, or a failed relay.

If the engine fires up but randomly dies and starts back up, you either have a failed sensor, failing fuel pump, clogged fuel filter, bad plugs or wires, or a failing ECU.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

its sounds like you have a sort some where, if you have a compressor , or the heater element could be bad? slide heater out to see if there is a burnt wire

If the unit has power, then not likely a bad breaker. The clicking sound you hear is the spark ignitor lighting the pilot. If you no longer hear this noise, the most likely cause is the spark control box, about 3 inches wide, 6 inches tall with wires connected to it.
If you provide the model number of the heater, I can send you a troubleshooting chart to determine if the spark control is bad or possibly a themostat or internal safety.