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(920) 988-7050
Servicing Watertown Wisconsin and Surrounding Areas


Our service department is ready to service your commercial or residential equipment any time, day or night. Richter Heating and Air Conditioning offers flat rate pricing to provide our customers with the best value.We service all brands of equipment, and our service trucks have access to a large inventory of repair parts to save the customer time and money.


  • Heating & Cooling Services
  • Sales, Service and Installation
  • Boilers
  • Radiant In-Floor Heat
  • Geothermal Heating
  • Indoor Air Quality
  • Fireplaces


  • FREE estimates
  • 24 hour emergency service, 7 days a week
  • City-wide dispatch
  • On-call technicians, including weekends and evenings
  • Licensed and fully insured
  • Service and repair all major brands and models
  • New equipment sales and installation
  • Duct and coolant leak checks
  • Efficiency checks
  • Competitive pricing
  • Financing Options Available

Cooling Preventative Maintenance Checklist:

  • Inspect outside condenser for proper pressures
  • Check power to outside condenser unit
  • Check electrical connections to outside condenser unit
  • Inspect outside condenser coil for cleanliness and leaks
  • Check the condition of condenser fan motor
  • Inspect evaporator coil for leaks
  • Check temperature difference before and after evaporator coil
  • Inspect drain pan under evaporator coil
  • Inspect primary and secondary drain lines
  • Check cleanliness of air filters
  • Lubricate all moving parts if necessary
  • Inspect thermostat efficiency
  • Check breakers and fuses for proper size and defects
  • Inspect amperage draw for outside condenser compressor and fan motor
  • Check contractor in outside condenser to ensure proper start-up

Heating Preventative Maintenance Checklist:

  • Clean pilot assembly
  • Check burners and heat exchanger
  • Adjust air and gas mixture
  • Check pressure on gas valve
  • Set blower control
  • Set gas limit
  • Check blower motor
  • Check fan belt
  • Check all safety controls
  • Check vent for obstructions
  • Lubricate all moving parts if necessary
  • Check and adjust for proper temperature rise
  • Check filters
  • Check vent pipe for leaks
  • Check all electrical connections
  • Check voltage for proper amp draw
  • Check evaporator coil if accessible
  • Check for gas leaks
  • Check heat strips (electrical furnaces)
  • Check breakers and fuses for amp draw (electrical furnaces)
  • Clean thermostat (electrical furnaces)
  • Calibrate thermostat (electrical furnaces)
  • Check for proper air flow (electrical furnaces)
  • Check coolant (heat pumps)
  • Check unit for proper cycling and adjust if needed

Let Richter Heating & Air Conditioning help you with all of your heating and cooling repairs and service.  Give us a call today!

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