HVAC Inspection Checklists
We know that having contractors in and around your home in Issaquah, Sammamish or the greater Puget Sound can sometimes feel like an invasion of space, so we want to do our best to make your experience as comfortable as possible. Here you can find a list of steps your technician is taking to maintain your HVAC equipment while at your home. From air conditioning units to furnaces, now you can be in the know about what your service technician is up to during HVAC inspections.
Air Conditioner & Heat Pump 21-Point Inspection
- Inspect and clean the outdoor condensing unit
- Inspect the indoor coil
- Inspect for visible refrigerant leaks
- Inspect the condensate drain pan
- Inspect the condensate drain line and p-trap
- Inspect wiring and control unit
- Inspect the blower assembly
- Inspect the thermostat operation and programming
- Verify suction and discharge pressure
- Verify supply and return air static pressures
- Inspect safety controls
- Inspect electrical components
- Verify temperature drop (and rise on heat pump)
- Verify correct superheat or sub-cooling
- Verify motor amps
- Clean control panel
- Verify correct voltage to equipment
- Verify blower speed
- Inspect refrigerant lines
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Ductless Mini-Split 22-Point Inspection: Outdoor Unit
- Inspect and clean the outdoor condensing unit
- Inspect the indoor coil
- Inspect for visible refrigerant leaks
- Inspect the condensate drain pan
- Inspect the condensate drain line and p-trap
- Inspect wiring and control unit
- Inspect the blower assembly
- Inspect the thermostat operation and programming
- Verify suction and discharge pressure
- Verify supply and return air static pressures
- Inspect safety controls
- Inspect electrical components
- Verify temperature drop (and rise on heat pump)
- Verify correct superheat or sub-cooling
- Verify motor amps
- Clean control panel
- Verify correct voltage to equipment
- Verify blower speed
- Inspect refrigerant lines
- Cycle equipment to verify operation
- Clean filter
- Provide a written diagnostic report of findings
Ductless Mini-Split 13-Point Inspection: Indoor Unit(s)
- Inspect and change batteries in remote if needed
- Inspect and clean filters
- Inspect and clean blower wheel
- Inspect and clean indoor housing
- Inspect and clean condensate line
- Inspect and clean indoor coil
- Verify condensate pump operation
- Verify correct voltage and communication to equipment
- Flush drain line
- Inspect flare connections and and refrigerant lines
- Inspect and clean louvers
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Electric Furnace 12-Point Inspection
- Inspect fuses
- Inspect limit switches
- Verify sequencers operating properly
- Verify heat strip amp draw
- Verify continuity of heat strips
- Verify blower motor amps
- Inspect low voltage wiring
- Inspect line voltage wiring
- Clean or replace 4” media filter or clean Electronic Air Cleaner (if needed)
- Inspect thermostat operation and programming
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Gas Furnace 21-Point Inspection
- Inspect wiring and control circuit
- Inspect blower assembly
- Visually inspect heat exchanger(s)
- Check/adjust fuel and air mixture
- Inspect venting and combustion air
- Check flame rectification and clean sensor
- Check/adjust inlet and outlet gas pressure
- Inspect for gas leaks
- Inspect safety controls
- Inspect electrical components
- Verify temperature rise (dry bulb)
- Verify flue temperature and draft
- Verify motor amps
- Clean the control panel, burners, and wipe down equipment
- Verify supply and return air static pressures
- Verify correct voltage to furnace equipment
- Test and measure carbon monoxide
- Inspect thermostat operation and programming
- Clean or replace 4” filter if needed
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Hot Water Tank 12-Point Inspection
- Verify hot water temperature
- Verify flame visibility and performance
- Verify temperature setting at tank
- Inspect and clean burners
- Inspect for rust and leaks
- Verify operation of relief valve
- Inspect venting system
- Drain 5 gallons of water from drain valve
- Verify earthquake straps intact and tight
- Wipe down equipment
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Make Up Air System 11-Point Inspection
- Verify fan hood triggers system
- Verify Heat strip amps
- Verify blower amps
- Inspect current sensor installation and wiring
- Verify current sensor setting
- Inspect blower wheel condition
- Wipe down equipment
- Change filter
- Inspect thermostat operation and programming
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Tankless System 14-Point Inspection
- Verify hot water temperature
- Verify flame visibility and performance
- Inspect and clean burners
- Inspect and clean flame sensor
- Inspect and clean spark rod
- Inspect and clean inlet filter
- Verify operation of relief valve
- Check for and investigate any fault codes
- Inspect venting system
- Flush system with white distilled vinegar*
- Clean equipment with pressurized air
- Wipe down equipment
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Inspection Checklists
Air Conditioner & Heat Pump 22 Point Inspection
- Inspect and clean the outdoor condensing unit
- Inspect the indoor coil
- Inspect for visible refrigerant leaks
- Inspect the condensate drain pan
- Inspect the condensate drain line and p-trap
- Inspect wiring and control unit
- Inspect the blower assembly
- Inspect the thermostat operation and programming
- Verify suction and discharge pressure
- Verify supply and return air static pressures
- Inspect safety controls
- Inspect electrical components
- Verify temperature drop (and rise on heat pump)
- Verify correct superheat or sub-cooling
- Verify motor amps
- Clean control panel
- Verify correct voltage to equipment
- Verify blower speed
- Inspect refrigerant lines
- Cycle equipment to verify operation
- Clean or replace filter
- Provide a written diagnostic report of findings
Ductless Mini-Split 26 Point Inspection - Outdoor Unit
- Inspect and clean the outdoor condensing unit
- Inspect the indoor coil
- Inspect for visible refrigerant leaks
- Inspect the condensate drain pan
- Inspect the condensate drain line and p-trap
- Inspect wiring and control unit
- Inspect the blower assembly
- Inspect the thermostat operation and programming
- Verify suction and discharge pressure
- Verify supply and return air static pressures
- Inspect safety controls
- Inspect electrical components
- Verify temperature drop (and rise on heat pump)
- Verify correct superheat or sub-cooling
- Verify motor amps
- Clean control panel
- Verify correct voltage to equipment
- Verify blower speed
- Inspect refrigerant lines
- Cycle equipment to verify operation
- Clean or replace filter
- Provide a written diagnostic report of findings
Ductless Mini-Split 26 Point Inspection - Indoor Unit(s)
- Inspect and change batteries in remote if needed
- Inspect and clean filters
- Inspect and clean blower wheel
- Inspect and clean indoor housing
- Inspect and clean condensate line
- Inspect and clean indoor coil
- Verify condensate pump operation
- Verify correct voltage and communication to equipment
- Flush drain line
- Inspect flare connections and and refrigerant lines
- Inspect and clean louvers
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Electric Furnace 12 Point Inspection
- Inspect fuses
- Inspect limit switches
- Verify sequencers operating properly
- Verify heat strip amp draw
- Verify continuity of heat strips
- Verify blower motor amps
- Inspect low voltage wiring
- Inspect line voltage wiring
- Clean or replace media filter or clean Electronic Air Cleaner
- Inspect thermostat operation and programming
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Gas Furnace 21 Point Inspection
- Inspect wiring and control circuit
- Inspect blower assembly
- Visually inspect heat exchanger(s)
- Check/adjust fuel and air mixture
- Inspect venting and combustion air
- Check flame rectification and clean sensor
- Check/adjust inlet and outlet gas pressure
- Inspect for gas leaks
- Inspect safety controls
- Inspect electrical components
- Verify temperature rise (dry bulb)
- Verify flue temperature and draft
- Verify motor amps
- Clean the control panel, burners, and wipe down equipment
- Verify supply and return air static pressures
- Verify correct voltage to furnace equipment
- Test and measure carbon monoxide
- Inspect thermostat operation and programming
- Clean or replace media filter or clean Electronic Air Cleaner
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Hot Water TANK 12 Point Inspection
- Verify hot water temperature
- Verify flame visibility and performance
- Verify temperature setting at tank
- Inspect and clean burners
- Inspect for rust and leaks
- Verify operation of relief valve
- Inspect venting system
- Drain 5 gallons of water from drain valve
- Verify earthquake straps intact and tight
- Wipe down equipment
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Make Up Air System 11 Point Inspection
- Verify fan hood triggers system
- Verify Heat strip amps
- Verify blower amps
- Inspect current sensor installation and wiring
- Verify current sensor setting
- Inspect blower wheel condition
- Wipe down equipment
- Change filter
- Inspect thermostat operation and programming
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
Tankless System 14 Point Inspection
- Verify hot water temperature
- Verify flame visibility and performance
- Inspect and clean burners
- Inspect and clean flame sensor
- Inspect and clean spark rod
- Inspect and clean inlet filter
- Verify operation of relief valve
- Check for and investigate any fault codes
- Inspect venting system
- Flush system with white distilled vinegar
- Clean equipment with pressurized air
- Wipe down equipment
- Cycle equipment to verify operation
- Provide a written diagnostic report of findings
