System non op on arrival. Old tstat was installed and wired correctly, old electric only furnace on a modular home. Tstat was sending power for W to energize. Found all correct voltage and all fuses ok. Found sequencer properly sending voltage to heat strips. Electric heat strips receiving proper voltage but have failed. High potential where they are no longer manufactured. Client to contact home warranty to see if they will help them out, system left non op. Suggested looking into system replacement options.