(2) Upon receipt of a copy of the tenant's complaint from the DHCR, an owner shall have 20 days in which to respond if the tenant provided DHCR with the proof of the written notice to the owner. If the tenant did not provide proof of written notice to the owner, an owner shall have 60 days in which to respond. If the tenant’s complaint indicates that the tenant has been forced to vacate the premises, the owner shall have five days to respond. If the complaint pertains to heat and hot water or to a condition which in DHCR’s opinion may require emergency repairs, the owner shall have 20 days to respond. Nothing herein shall preclude DHCR from granting an owner’s request for a reasonable extension of time to respond in order to establish that service problems have been repaired. If during this period of time, an owner has attempted, but been unable to obtain access to the subject housing accommodation to correct the service or equipment deficiency, the owner should set forth such facts in the response. Upon receipt thereof, in order to facilitate the resolution of the complaint, the DHCR may direct an inspector to accompany the owner or the owner's agent to the housing accommodation to determine whether such access is being provided. In order for DHCR to coordinate the inspection, the owner should indicate that access has been denied in the response submitted to the DHCR and should include copies of two letters to the tenant attempting to arrange for access. Each of the letters must have been mailed at least eight days prior to the date proposed for access, and must have been mailed by certified mail, return receipt requested. Exceptions to such requirements for inspection may be permitted under emergency conditions, where special circumstances exist, or pursuant to court