Most RV solar systems range from 200-800 watts using 12V panels wired in parallel with PWM or MPPT controllers. Wire gauge depends on amperage and distance, with 10-12 AWG typical for most installations.
Furnace running 10 seconds then stopping is usually sail switch not sensing airflow, dirty flame sensor, or blocked vents. Check blower operation, clean flame sensor, verify air paths clear.
Use DC to DC charger for alternator charging of lithium batteries, not direct connection. Victron Orion or similar limits current and protects the alternator from overcurrent damage.
Coleman Mach heat strips can be added using the Heat-Ready Control Box. This adds electric heat through your AC while keeping furnace independent. Verify AC model compatibility and check electrical capacity - heat strips draw significant amps.
For F53 chassis wheel bearing service, contact Ford dealerships or heavy-duty truck shops since Camping World doesn't service motorhome chassis. Your beeping propane detector likely needs replacement, and the slides are interlocked with the LP detector for safety.
Furnace running 5-10 minutes then quitting usually indicates overheating from restricted airflow, weak flame, or failing control board. Check combustion air intake, propane pressure, and burner flame quality. Control board becomes suspect if other tests pass.
Yes, you can remove inverter/charger and install standalone battery charger. Much less expensive than replacement inverter. Check if inverter includes transfer switch - you may need to address that. IOTA or Progressive Dynamics chargers work well.
For a 2002 Born Free with Suburban SF-30 furnace, choose the complete furnace replacement over just the core. While cores cost less, complete units include updated components, better reliability, and easier installation for DIYers.
Your Coleman 9420-381 thermostat has failing solid-state switching components causing voltage drop during heating calls. This is a known issue with this model - replace it with a more reliable thermostat or return to a mechanical relay-based unit.
Your thermostat power issue is likely caused by incorrect wiring where power runs through the furnace circuit board instead of directly from the 12V system. Check for red or orange wires that should connect directly to your RV's 12V positive system.
When upgrading your Suburban KT30 furnace to the 521099 circuit board, you need to properly connect the flame sensor circuit to get continuous spark ignition instead of just one spark. The new board requires different wiring than simply grounding the old flame sensor wire.
Furnace blower runs but no ignition usually indicates sail switch, igniter, or gas valve failure. Check sail switch for debris first. Watch for spark at igniter. First run of season may need multiple cycles to purge air.
Suburban SH-42 thermostat circuit is simple - thermostat closes circuit to allow furnace to run. After thermostat replacement, verify both wires are connected tightly at thermostat and furnace. Test by jumping thermostat wires at furnace - if it starts, wiring or thermostat issue.
RV 12V systems typically use 40A auto-reset breakers with dual 6V batteries and WFCO converters. Check breaker rating stamped on unit. Common sizes are 30A, 40A, and 50A.
Replace Atwood 8535-III with Dometic 8535-IV direct replacement or Suburban NT-30SP alternative.