Heat maintenance. Checked blower, heat strips, compressor and condenser all within correct specifications. Checked pressures, temp pressure look good in accordance to ambient temp. Aux drain pan needs to be replaced, no water safeties on system or pan. Was working up a quote and speaking with customer. Customer did not want to replace any parts but is interested in replacing whole system just not at this time. 6-12 month time frame. Will have to check back at a later date. System is running correctly and efficiently at departure.