Customer called due to system not operating in heating. Found systems stat wire to be bad and unable to have heat without disconnecting reversing valve wire from R at unit. When I arrived found system hard wired for cooling only. Also found system to have no heat strips at all in unit. Requested quote for heat strips customer has already been quoted to have thermostat wire replaced the last time we were out. Customer has two thermostat wires ran to the unit but different colors inside at thermostat. Thermostat wire is spliced under the house somewhere. Customer requested system be wired for cooling at this time heating is not operating. Office will contact customer with pricing for heat strips. Breaker and wire already ran.