Process published — nice work
What you do next determines whether this becomes real training. Pick one:
Your Progress
0 of 6 steps completedStep-by-Step Instructions
1 Step 1: Identify Heater Problem Type
Step 1: Identify Heater Problem Type
Determine if issue is no heat, insufficient heat, or heater blowing cold air.
2 Step 2: Check Coolant Level
Step 2: Check Coolant Level
Low coolant prevents hot coolant from reaching heater core - top off if low.
Engine Coolant 50/50
Pre-mixed antifreeze for topping off
3 Step 3: Test Heater Core for Flow
Step 3: Test Heater Core for Flow
Feel heater hoses - both should be hot when engine warms up, indicating core flow.
Heater Core Flush Kit
Chemical flush for cleaning clogged heater core
4 Step 4: Check Blend Door Operation
Step 4: Check Blend Door Operation
Test if temperature control changes air temp - if not, blend door actuator may be faulty.
Blend Door Actuator
Replacement actuator motor for temp control
5 Step 5: Verify Blower Motor Function
Step 5: Verify Blower Motor Function
Test if blower works on all speeds - weak airflow indicates bad blower or resistor.
Blower Motor
Replacement heater/AC blower motor
Blower Motor Resistor
Resistor pack for controlling blower speed
6 Step 6: Replace Heater Core if Leaking
Step 6: Replace Heater Core if Leaking
If coolant smell, wet carpet, or foggy windows persist, heater core may need replacement.
Heater Core
Replacement heater core for your vehicle
Want to create your own processes?
Document your business workflows, train your team, and stop repeating yourself. Free to start.